Broberg K B, von Essen H O
Spine (Phila Pa 1976). 1980 Mar-Apr;5(2):155-67. doi: 10.1097/00007632-198003000-00010.
A model with rotational symmetry of an intervertebral disc is studied. The nucleus pulposus is assumed to consist of an incompressible fluid, and the annulus fibrosus is modeled by 11 fiber layers with alternating fiber inclination. The spaces between the fiber layers are assumed to be filled with an incompressible fluid. The pressures in the fluid compartments, the fiber strains, and the bulge are calculated under different assumptions regarding fiber inclination, fiber force-elongation relation, initial fiber layer bulges, and so on. The agreement with experimental results is very good. Possible extensions of the model are briefly discussed.
研究了一种具有旋转对称性的椎间盘模型。假设髓核由不可压缩流体组成，纤维环由11个纤维层建模，纤维倾斜方向交替。假设纤维层之间的空间充满不可压缩流体。在关于纤维倾斜、纤维力-伸长关系、初始纤维层凸起等不同假设下，计算了流体腔室中的压力、纤维应变和凸起。与实验结果的吻合度非常好。简要讨论了该模型可能的扩展。
